Dry closet or commode



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J. L. MARVIN.

DRY GLOSET 0R GOMMODE. No. 518,616. Patented Apr. 24, 1894.

WITNESSES. INVENTOH w 2 OK M ATTORNEYS.

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UNITED STATES PATENT OFFICE.

JUDSON L. MARVIN, OF MAUSTON, VVISOONSIN.

DRY CLOSET ORCOMMODE.

SPEQIFICATION forming part of Letters Patent No. 518,616, dated April24, 1894.

Application filed July 8, 1893. Serial No. 479,879. (No model.)

To all whom it may concern.-

Be it known that I, J UDSON L. MARVIN, a citizen of the United States,residing at Mauston, in the county of Juneau and State of Wisconsin,haveinvented certain new and useful Improvements in Dry Closets or Commodes;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and usethe same.

The objects of my present improvements are, first, to provide for therapid evaporation of urine and drying or. burning of the solidexcrement; secondly, to insure the direct escape of the steam and odorsresulting from the evaporation of the urine or liquid matter Withoutcausing the same to pass through the solid excrement and therebyfacilitate the drying up of the liquid and solid matters in the commodeor dry closet and prevent the solid excrement.

escape of noxious odors into the room or apartment; thirdly, to providefor the easy cleansing of the commode; and finally to simplify andcheapen the construction.

With these ends in view, the improvement consists of an excrement vesselinclosed within an external casin g or stool from which leads a pipe orflue that is designed to be connected to a chimney to provide for theescape of noxious odors without their admission into the room orapartment. This excrement vessel has an imperforate bottom formed with acentralraiseddomeandachannelbetweenthevertical walls of the receptacleand said central dome; and over this channel in the bottom of thereceptacle is placed a tray constructed to permit the urine or liquidmatter to pass through the same into the channeled imperforate bottomand to retain upon itself the Below the imperforate bottom of thereceptacle is placed a burner of any suitable form which is designed toheat the bottom of said receptacle and the tray there in, for thepurposes of evaporating the urine or liquid matter and for drying orburning the solid excrement on the tray; and to facilitate the escape ofthe steam and noxious odors resulting from the evaporation of the urine,I provide a separate conduit or flue which leads from the evaporatingchamber, formed by and between the imperforate bottom and the tray, tothe flue and chimney so that said steam and odors will not be compelledto pass through the solid excrement and the matter can be more quicklydryed and burned. Provision is made for the admission of air by formingsuitable inlet ports in the external casing and in the vessel above theevaporating channel therein, and a draft is thus created through thecommode into the fines and chimney, which is augmented by the action ofthe burner situated below the vessel. This vessel and its containedparts, the tray and the flue or conduit, is removable bodily from theexternal inclosing case, either through the top or side thereof, and thetray is removable from the receptacle, so that the parts can be readilycleansed.

In the accompanying drawings, forming a part of this specification, Ihave illustrated the preferred embodiment of my invention, in WhichFigure l is a vertical sectional view illustrating the commode or drycloset connected with a chimney. Fig. 2 is a detail view of thereceptacle. Fig. 3 is a plan view of the removable tray, and Fig. 4 is adetail view of another embodiment of my receptacle.

Like letters of reference denote corresponding parts in all the figuresof the drawings.

A is the external casing of my commode or dry closet. The seat or top Aof this casing is provided With the usual hole a which can be closed byany suitable cover or stopper, not shown, and from one side of thiscasing leads a pipe or flue B which can be connected in any suitable waywith a chimney, as indi cated in Fig. 1. This casing A may be builtsquare, round, or any convenient shape, and it may have one or moresteps, but these details can be varied or supplied by a skilledmechanic. Within this casing A is provided the receptacle D and a burnerE. The re ceptacle may be square, cylindrical, or any other preferredstyle, and it is constructed of a suitable fire resisting material,preferably of metal. Said receptacle is held or suspended Within thecasing A in a manner to leave air space or chamber between itselfand thecasing A; one means for suspending the vessel D may consist of theturned flange D engaging with a suitable ledge d on the" inside of thecasing A but this particular suspension means can be varied at pleasure.This receptacle is held in the casing in a manner to bring its top edgesubstantially flush with the opening of the escape flue Bto enable theodors to readilypass from the dry closet through the flue B into thechimney, and a circulation of air through the closet is insured byproviding air inlet openings e, e, in the casing and the vertical wallsof the receptacle, the openings Z in said receptacle being at a suitabledistance above the evaporating chamber and tray at the bottom. Thebottom of said receptacle D is made imperforate and constructed toreceive a removable tray Fwhich is arranged therein to form anevaporating chamber f between the imperforate bottom and said tray. 7 g

In the embodiment of the invention shown by Figs. 1 and 2, the centralpart of the bot: tom is raised to form the dome hand the bottom betweenthe central dome and vertical walls is depressed and forms thesurrounding channel h. The tray F is made to conform to the bottom andit has a central opening t which receives the raised central dome it sothat the tray rests upon and is supported by the dome above and over thechannel h to form the evaporating chamber f; and said tray is furtherprovided with openings or a grate j through which the urine or liquidmatter can pass into the channel It on the imperforate bottom of thereceptacle.

I preferably locate the burner E in or immediately below the centralraised dome has shown in Fig. 1 sothat the bottom of the receptacle andthe tray F are subjected directly to theaction' of the heat from theburner. This burner may be of any kind consuming 1 gaseous or liquidfuel, although a gas burner will probably be found mostconvenient asitcan be readilysupplied with" gas fromfthe pipes in the dwelling house. g

I I1 is the flue or conduit which'leads directly from the evaporatingchamber h to the flue B for escapeof the steam and noxious odorsresulting from evaporation of the urine or liquid matter Without passingthrough the solid excrement contained on the tray F. This con.- duit His fast withthe inner face of the receptacle on the side thereofadjacent to the flue B, and its upper end is. arranged to discharge intoterminates above the channel 71. in the imperforate bottom of thereceptacle. One side of the removable tray is out out or formed with arecess, at 'i','to accommodate the flue H, and thus the tray F can be.removed and replaced Without interfering with the flue H. The externalcasing A is constructed to permit the receptacle D to be removedwheneverit .is desired to clean the same. The receptacle can be lifted outbodily through the top of the casing, or through one of the sidesthereof;

and as the tray F and escape flue H are con- .tained within thereceptacle D, they are removed from the casing A when the receptacle Dis taken out so that ready access can be had said flue B while its lowerend.

to the tray F- to remove it frpm the receptacle and clean the driedexcrement therefrom.

For the purpose of more quickly drying the excrement on the tray F, Imay provide air inlet holes Z in the vertical wall of the recep I I vta'cle just below or above thetray so that hot air can pass directlyoveror above the matter l on the tray.

In the embodiment of my invention shown by Fig. 4, the central dome h ofthe recepta cle is extended a short distance above-the level of thedome, and in the vertical walls of this extended dome a series ofopeningsj is providedfor the ingress of hot air from the burner which iscaused to pass over the'solid matter on the tray, said openings. beingsome distance above the channel it and the tray F to prevent eithersolid or liquid matter from passing through the receptacle upon theburner or to the bottom of the closet.

The operation of my invention will be readily understood from theforegoing description taken in connection with thedrawings.

.I am aware that changes in the formand proportion of parts and detailsof construe- I tion of the devices herein shown and described as anembodiment of my invention can be made without departing from the spiritor sacrificing the advantages thereof, and I therefore reserve the rightto make such changes and alterations therein as fairly fall within thescope of the same.

I do not limit myself" to the use of .any particular kind of burner asit is evident that heat can be supplied by means of astea'm-'heatedcoil, or by a hot water coil, or by hot {air when. the closet isused in or adjacent to, x a a building heated by a system of pipes, nordo Iconfine myself to the precise'arrangee QIOO ment of the'verticalflue herein described as p it is also evident thatthe position of the receptaclerelative to the'external casing may be varied, thus requiring achange in the position of the vertical flue, it only being necessary toso dispose the'flueas to lead the steam, &c., from theevaporati'ng'chamber to the outlet pipeor flue.

Having thus fully described thy invention,

what I claim as new, and desire, to secure by Letters Patent, is t 1. Ina dry closet, a receptacle provided I, with adome and a surroundingchannel int its bottom, combined with a removable tray arranged in saidreceptacle and forming there'- with an evaporating chamber, and anescape flue leading from said chamber, as and for the purpose described.

2. In a dry closet, the combination of a receptacle, having an'imperforate bottom formed with a raised dome, a removable tray fittedWithin the receptacle, around the dome,

therein, and formingwith the bottom an evaporating chamber and providedwith openings to permit the passage of liquids into said chamber, anescape flue leading from said evaporating chamber, and a suitableheater,as and forthe purposes described.

3. The combination with an external casing having the outlet pipe, of aremovable receptacle having an imperforate bottom, a detachable traysupported within said receptacle and forming, with its bottom, anintermediate chamber, a flue leading from said intermediate chamber andconnected with the outlat pipe, and a suitable heater below thereceptacle, substantially as and for the purposes described.

4. In a dry closet,a receptacle having an imperforate bottom formed witha central dome and a channel, combined with an external casing, aremovable tray seated within the receptacle, over the channel therein,and forming the intermediate chamber, a heater situated below the domeof the receptacle, and a flue leading from the chamber between JUDSON L.MARVIN.

, Witnesses:

E. V. BENJAMIN, P. H. CARROLL.

